I believe if the economic situation around the world worsens, then there will indeed be more Bitcoin adopters because they will want to preserve the value of their money. Just like with what happened with Venezuela and Africa.
If things don't turn right for China and USA, we might see the same thing happening soon for the "losing" country.
I guess the main reason why people in country with huge inflation are buying bitcoins is simple, they are trying to save their earnings from inflation.
but that is working while the rest of the world is in a good shape, but if all financial system is going to collapse I doubt bitcoin could be safe harbour for all of us